Take scotch on the rocks literally! These lucite glasses have rocks in the base that clank around and are ready for a fun night with friends. These vintage, kitschy tumblers from the 1970s, are made of acrylic and labeled with the punny phrase "on the rocks".They feature a segmented design where the bottom section is filled with real rocks for decorative effect.The glasses are described as a novelty item and sometimes referred to as
